[dstockwell@freqonec001 ~]$ dbus-send --system --type=method_call --print-reply --dest=org.bluez /org/bluez org.bluez.Manager.DefaultAdapter
method return sender=:1.12 -> dest=:1.22
   string "/org/bluez/hci0"
[dstockwell@freqonec001 ~]$ dbus-send --system --type=method_call --print-reply --dest=org.bluez / org.bluez.Manager.DefaultAdapter
method return sender=:1.12 -> dest=:1.23
   object path "/hci0"